Vehicle-rim.



No. 877,726. 7 PATENTED JAN. 28, 1908.

W. J. NORDLUND.

VEHICLE RIM.

APPLICATION FILED MA R. 4, 1907.

INVENTOR ATTORN UNITED STATES PATENT OFFICE.

WALTER J; NORDLUND, or OAKLAND, CALIFORNIA r VEHICLE-RIM.

- Specification of Letters Patent.

Patented Jan. 28,1908.

' Application filed March 4. 1907. Serial No. 360,440.

TodZZ-whom it may concern: I

Be it known that I, WALTER J. NoRDLUND, citizen of the United States, residing at Oakland, in the county of Alameda and State of alifornia, have invented new and useful Improvements in Vehicle-Rims, of which the following is a specification.

.job ordinarily to dig out a heavy automobile tire from its rim or to put one on each time it is necessary to mend a puncture or put in a new inner tube.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described andclaimed,

having reference to the accompanying drawin s, in which'- igure 1 is a side elevation of a Wheel of the improved form. Fig. 2 is a sectional view transversely of the rim. Fig. 3 is a diagram matic view of the rim members, and-Fig. 4 is a perspective portion of same. In the embodiment of my invention I employ a rigid wheel rim section A and a removable rim section 2. The section A is permanently, or otherwise secured to the annular supporting rim 3, and isprovided with the lateral annular flange 4 which is designed to support one side of the tire. Manifestly the part 3 and the fixed rim section A might be made integral. The removable rim section 2 is adapted to slip on and off of the rim 3 and carries an annular lateral flange 5 ada ted to cooperate with the flange 4 in holding the tire in osition when the parts are properly assemb ed.

.The sections A2 are provided with suitable interlocking means on their adjacent ed es so that a spreading action of the rim wifi take lace when one section is turned on its axis relative to the other section to allow the tire to be removed; and whereby on the turning-of the movable section in the opposite direction, the flanges 45 are drawn towards each other to clamp and bind the tire. drawn together and interlocked, or spread apart, constitute the essential features of the present invention.

As here'shown the adjacent edges of the The means by which these sections arecomplementary Wedges 6 with the undercut ledges 7. Withthe two sections laid face to face, a wedge on one section will abut against a corresponding wedge on the opposite section; if one section is turned relative to the other the movable section will either ride nward or outward on the cam surfaces or wedges of the stationary section to spread or.

contract the flanges 1 5. The under cut ends of the wedges or hooks 7 are also in clined so that opposed surfaces 7willact cam-fashionand with a; drawing action to draw the flanges 45 together. -Thusit 'will be observed that the spreading'of the sections to permit the removal of the tire is' effected by the cams or wedges 6 and that the drawing together of the sections to clamp the tire is accomplished by the cam surfaces or hooks 7. Section 2 has both, a rotative and atransverse or lateral movement with respect to section A.

Th-e fixed female portion 3 of the rim simply serves asguide and support for the removable male section 2.

In order to facilitate the turning of the movable section to lock or unlock the tire, I provide the following simple-means: The section 2 has an inside annular flange- 8 to two sections are formed with intermatchin'gabut against the part 3, and this flange is provided with rack teeth at one or more points as indicated at 9 Fig. 1. The fixed part 3 or any other appropriate portion of the fixed part of the wheel is made with corres onding rack teeth \10, the rack teeth 9-10 eing arranged in pairs and separated sufficiently to allow the insertion of a key as 11 having an' appropriate pinion-shaped head 12.' This imon is adapted to engage both racks simultaneously so that. by turn-'- ing thekey, it is a comparatively easy matter to rotate the section 2 in either direction with respect to the section A.

'Any suitable means. may be employed to lock the sections together. As here shown I I use a segmental dowel late 13- havin ed es or teeth to-fit the test of the o posed rac s 9-10 and being held in place %y appropriate means as the screw 14. I

- In operation, to put on a tire: The section 2 is removed and the tire slipped on over section A to abut against the flan e 4. The section 2 is thenreplaced, and wo5 ed under the tire, being careful to bring the opposed pairs of rack teethQflO in proper juxtaposition. With the opposed cam surfaces 7 in turn section 2 in a direction to separate the contact, the sections are drawn together by \inserting a key 11 between the racks 9-10 and turning the key so that the section 2 is given a. rotative movement to cause the 0am surfaces 7 on' section'2to ride inward on the opposed cam surfaces 7 on s'ectionA. This acts to draw the sections-together and bind the flanges 4'5 against the tire. The dowel key 13 is'then inserted and secured in position by'the screw 14 or othersuitable means. To remove the tire: The screw 14 and dowel key 13 are taken off, and the key 11 used to contiguous surfaces 7. This results in bringing the cam surfaces 6 into play to unlock the sections, spread flanges 4-5 and force section 2'otfof the support 3.

Lhe several opposed cam surfaces on the two sections are pitched so that in the nat ural travel of the Wheel over the road-way, the points of the cam 7 on the two sections are driveii constantly into the angle formed by the meeting lines of the cams 6 7 so that there will be no tendency from this source for the sections to spread.

Having -thus described my invention, what I claim and desire to secure by Letters Patent, is-

l. A wheel rim comprising a fixedsection and a movable section, said sections having opposed interlocking cam surfaces, and a rotatable member operable between the fixed and movable sections and engaging both sections whereby one section Tn y be moved axially relative to the other section.

2. A wheel-rim comprising a fixed secopposed corresponding rack carried by a fixed part of the wheel-rim, and a key engaging said racks to rotate the movable section.

3. A wheel-rim comprising a fixed section and a movable sect1on,- said sectlons having opposed interlocking cam surfaces, a rack carried by the movable section, an opposed correspondin rack carried by a fixed part of the whee -rim, a key engaging said racks to rotate the movable section, and a serrated-dowelplate engageable with said racks to lock the sections against rela* tive movement.

4. A.wheel-rim comprising a fixed section and a movable section, said sections hav n corresponding opposed cam surfaces where y on the rotation of one section relative to the other, the sections are drawn toward each other to clamp the tire, and means including a serrated-dowel-plate engageable with corresponding serrated parts located respectively on the movable section and on a fixed part of the wheel-rim to lock the two sections against relative movement.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WALTER J. NORDLUND.

'Witnesses:

S. H..NOURSE, "FREDERICK E. MAYNARD. 

